Pet services priced at$20 in 2000→$35.08 in 2018

Historical Price Inflation for Pet services

Prices for Pet Services, 2000-2018 ($20)

According to the U.S. Bureau of Labor Statistics, prices for pet services were
75.41% higher
in 2018 versus 2000 (a $15.08 difference in value).

Between 2000 and 2018:Pet services experienced an average inflation rate of 3.17% per year.
This rate of change indicates significant inflation.
In other words, pet services costing $20 in the year 2000 would cost $35.08 in 2018 for an equivalent purchase.
Compared to the overall inflation rate of 2.12% during this same period, inflation for pet services was
higher.

In the year 2000: Pricing changed by 3.91%, which is
above the average yearly
change for pet services during the 2000-2018 time period.
Compared to inflation for all items in 2000 (3.38%), inflation for pet services was
higher.

Price Inflation for Pet services since 1998

Consumer Price Index, U.S. Bureau of Labor Statistics

Years with the largest changes in pricing:
2008 (5.70%),
2005 (4.92%),
and 2007 (4.58%).

How to calculate the inflation rate for pet services, 2000-2018

Then plug in historical CPI values from above. The CPI for Pet services was 108.892 in the year 2000 and 191.012 in 2018:

191.012 / 108.892* $20 = $35.08

Therefore, according to U.S. Bureau of Labor Statistics, $20 in 2000 has the same "purchasing power" as $35.08 in 2018 (in the CPI category of Pet services).

Source: U.S. Bureau of Labor Statistics began tracking the Consumer Price Index for Pet services in 1998. In addition to pet services, the index produces monthly data on changes in prices paid by urban consumers for a variety of goods and services.